balance of harmonious growth.

You will perform the daily work to which you are naturally adapted in the
common weal (Objective Concentration) and after the daily task is
finished, retire to the bosom of the Universal Spirit by the regular
practice of Subjective Concentration.

Now will you realise the ideal of peace in the very midst of the toil
and sweat of the day.

The foregoing diagram, if closely and thoughtfully studied, will show the
stages the mind has to 'grow into' in objective and subjective
concentration.

In order to acquire knowledge of the laws of external nature the mirror
you require is accurate observation and you must focus your attention and
push objective concentration to its final stage of perfect knowledge or
illumination in order to master any special branch of science.

In Objective Concentration, _Pratyahara_ and _Dharana_ are the
preparatory stages. Take a scientist, for instance. He knows that when
the mind is engaged with several things, mind force is scattered. He
cannot be a politician, a musician, etc., and at the same time an expert
scientist. He gradually abstracts his attention from all other subjects
and pauses it on one subject or one set of subjects.

_Pratyahara_ is the continued effort of the mind to so abstract itself.

_Dharana_ is reached when this effort is finally successful and the
mind becomes steadfast and one-pointed. _Dhyana_ is an extension of